JSFiddle - React, Tailwind, and code Playground

HTML

<input name="test" id="iid" onKeyUp="test_fn(this.value)" type="number">

JavaScript

function test_fn(test_value){
	var test_value = test_value.replace(/[^0-9]+/g, "");
	document.getElementById("iid").value = "";
	document.getElementById("iid").value = test_value;
}